long games
It takes me about ..guessing ... 24-30 hours of real life to play a GC. usually over many sessions. sometimes i will do a marathon of 8-12 hours, but thats excessive as i like having a job and friends and a life etc.
a war that lasts a few years game time can take me a few hours to play through. i can usually play about 30 years in game time over 4 hours (I change speeds all the time and take small breaks, and sometimes fall into micromagement etc., so this is rough) i find too many wars tedious and can stretch out the game to hours more than i want.
how many times have i thought at midnite, just one more war, and then when the peace treaty gets inked its suddenly 4 am . Too many.

i gotta watch it.
so warmongering is bad for ME.
edit: hmm. i neglected to acount for 18th C. which i usually pass, as game is foregone conclusion. so add another 8-15 hours to game time for complete GC.